Edge-First Architecture: A Practical Guide
How moving compute and content to the edge cuts latency and cost — and when it doesn't.
“Edge-first” gets thrown around a lot. Here’s what it actually means in practice, and how to decide whether it’s right for your project.
What runs at the edge
Static assets, caching, routing, personalization, and lightweight APIs are all great candidates for the edge. They benefit from being physically close to users.
What doesn’t
Heavy computation, large stateful workloads, and anything needing a big database connection is often better kept in a region — with the edge as a fast front door.
A pragmatic pattern
User → Edge (cache + routing + light logic) → Regional API → Database
This keeps the fast path fast while giving heavier work a stable home.
Measure, don’t assume
We always start by measuring real latency and cost before moving anything. The edge is a powerful tool, not a silver bullet.